General
Product type	earth conductor disconnecting terminal
Technology	CAGE CLAMP®
Operating voltage	24 V
Maximum conductor cross-section	6 mm²
Minimum conductor cross-section	0,2 mm²
Colour	Grey

The WAGO 282-140 is an earth conductor disconnect terminal designed specifically for use in electrical installations where targeted disconnection of the earth conductor is required. The device enables safe and reliable connection and disconnection of earth conductors with a cross-section of 0.2 to 6 mm². The terminal is finished in grey and is based on CAGE CLAMP® technology, which enables a secure and durable connection without the need for additional tools. The operating voltage is 24 V, making it suitable for applications in control and automation technology.

Applications

The earth conductor disconnect terminal 282-140 is used in industrial electrical installations where targeted disconnection of the earth conductor is necessary for maintenance work, testing, or isolating devices. It is particularly common in enclosures, control systems, and automation technology installations, where electrical safety and compliance with standards are paramount. The terminal is designed for use in environments where secure earthing and accessibility for maintenance are required.

Functions and Features in Detail

The terminal features CAGE CLAMP® connection technology, in which the conductor is securely clamped by a terminal clamp. This technology ensures a stable and corrosion-resistant connection that can be mounted and dismounted without tools. The disconnect function allows the earth conductor to be interrupted at the terminal without having to disassemble the entire connection. The terminal is designed for a maximum conductor cross-section of 6 mm², with a minimum cross-section of 0.2 mm². The grey colour serves as visual identification and is typical for earth conductor components.

Technology Explained Simply

The CAGE CLAMP® technology operates using a spring-loaded terminal clamp that automatically secures the inserted conductor. During installation, the conductor is inserted into the terminal, and the spring force ensures a secure contact. Disconnection is achieved by a mechanical movement that interrupts the contact. The terminal is designed for an operating voltage of 24 V, making it suitable for applications in control and automation systems. The use of 24 V is common in industrial controls, as this voltage offers a good balance between safety and performance.

Compatibility and Accessories

The terminal is compatible with various accessories used for identification and protection of the installation. These include, for example, WMB multi-labelling systems in various colours (e.g. blue, light green, purple) as well as wire end ferrules for different conductor cross-sections. Suitable support rails such as aluminium, steel, or copper support rails enable mounting in standard switchboards. Additionally, cover profiles and cross bridging can be used to protect the terminal or connect multiple conductors.

Mounting and Installation

Mounting is performed on standard support rails (e.g. 35 mm wide) using the integrated clamping profiles. The terminal is simply clipped onto the rail and locked in place. The conductor connection is made by inserting the conductor into the CAGE CLAMP® terminal clamp, with no additional tools required. The earth conductor is disconnected by actuating the disconnect mechanism, which interrupts the contact. Installation is therefore quick and can be done without special tools.

Operational Advantages

The terminal provides a secure and reliable earth connection that can be quickly disconnected when needed. The CAGE CLAMP® technology ensures a stable connection that remains intact even under vibration and temperature fluctuations. The disconnect function enables targeted isolation of the earth conductor, which is advantageous during maintenance and testing. The use of 24 V makes the terminal suitable for industrial control systems, where this voltage is standard. The grey colour supports visual identification in the enclosure.